A High Power Quality Battery Charger for Light Electric Vehicle based on Improved BL Cuk Converter with Low Component Count

2020 IEEE 9th Power India International Conference (PIICON) Pub Date : 2020-02-01 DOI:10.1109/PIICON49524.2020.9112886

Bhim Singh, R. Kushwaha

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引用次数: 1

Abstract

In this paper, a bridgeless (BL) Cuk converter with low component count is presented for front-end power factor correction (PFC) in E-rickshaw battery charger. A flyback converter is used at the next stage to control the current through the e-rickshaw battery. This front-end BL Cuk converter uses only one switch, and one diode for bridgeless operation. The numbers of magnetic components in the converter, are reduced to half than that in a conventional two switch BL Cuk converter based E-rickshaw battery chargers. Therefore, the total component count is significantly reduced than the conventional one. This BL Cuk converter has the additional advantage of reduced switch voltage stress when compared to conventional BL converters. This BL PFC converter and the isolated converter are selected to operate in discontinuous conduction mode (DCM). An 850W prototype of this EV charger is tested at steady state and over the varying supply voltages. The improved performance of this BL Cuk converter is observed with reduced voltage stress, higher efficiency over the conventional BL converters on the account of low conduction losses.

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基于改进型低元件数BL - Cuk转换器的轻型电动汽车高品质电池充电器

提出了一种用于电动三轮车电池充电器前端功率因数校正的低元件数无桥Cuk变换器。下一阶段使用反激变换器来控制通过电动三轮车电池的电流。该前端BL - Cuk变换器仅使用一个开关和一个二极管进行无桥操作。与传统的双开关BL - Cuk转换器相比，该转换器中磁性元件的数量减少了一半。因此，总组分数比传统的显著减少。与传统的BL变换器相比，这种BL Cuk变换器具有降低开关电压应力的额外优势。该BL PFC变换器和隔离变换器被选择在不连续导通模式(DCM)下工作。一个850W的电动汽车充电器原型在稳态和不同的电源电压下进行了测试。这种BL - Cuk变换器的性能得到了改善，电压应力降低，由于导通损耗低，效率高于传统的BL变换器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 IEEE 9th Power India International Conference (PIICON)

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